Camera techniques
Aperture
- The aperture allows you to control the amount of light let into the lens. F/ 1.4 lets in a lot of light, F/16 doesn't.
- This allows you to manipulate the depth of field of photos.
- The aperture is measured in f-stops.
- Small aperture= high F-stop (32/22) = lots in focus = large depth of field.
- Large aperture = low F-stop (4/2.8) = less in focus = narrow depth of field.
- The icon on the camera that controls the aperture is A/Av or the landscape/portrait icon.
- The use of aperture makes the subject matter more important, and also prevents any unwanted distractions.
This was taken at f4.5 ( Large aperture, large depth of field.) This was taken at f20 ( low fstop, smaller aperture)
Shutter speed
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- Shutter speed stops light going to the back of the camera.
- The principle reason for controlling the shutter speed is to capture action or movement.
- The icon on the camera that controls the shutter speed is the 's' icon.
- A slower shutter speed creates a blurred affect (1/5 +), a fast shutter speed creates a more focused photograph. (1/200)
- The 'running man' icon fires the shutter speed really fast.
- The shutter can be held open for a long period of time using the 'B' timer.
To manually control the the aperture you would use the A/Av feature, or the landscape mode on a standard DSLR.
To manually control the shutter speed you would use the S/Tv feature or the 'woman in a hat' icon.
This photograph was taken with a slower shutter speed This photograph was taken with a higher shutter speed (1/200)
(1/10) the movement in this photograph creates a blurred effect. this ensures that the photograph is more in focus.
(1/10) the movement in this photograph creates a blurred effect. this ensures that the photograph is more in focus.